MATHEMATICS HIGH SCHOOL

Which statement is true about the following system of equations?
3x-1/2y=1
x+2y=7

Answers

Answer 1
Answer: Many many true statements could be offered regarding those two equations.
Sadly, until you share the list of choices you're looking at, there's no way for
anyone to help you choose the best one.
Answer 2
Answer: \begin{cases} 3x- (1)/(2)y=1 \ \ / \cdot 4\n x+2y=7 \end{cases}\n\n\begin{cases} 12x- 2y=4 \n x+2y=7 \end{cases}\n+ -------\n13x = 11\ \ / :13\n\nx=(11)/(13)

x+2y=7 \n \n (11)/(13)+2y=7\n \n2y=7-(11)/(13) \n \n2y=(91)/(13)-(11)/(13)\n \n2y =(80)/(13)\ \ / \cdot ((1)/(2))\n \ny=(40)/(13) \n\n\begin{cases} x=(11)/(13)\n y= (40)/(13) \end{cases}

 

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How do you write a quardratic equation wiyh the given roots
Help please!!! Anything would be appreciated :3
What number should be added to the expression x^2 + 14x to change it into a perfect square trinomial? Can you help me with this?
Solve x2 + 20x + 100 = 36 for x.a. x = –16 or x = –4 b. x = –10 c. x = –8 d.x = 4 or x = 16

To make cupcakes the recipe requires 3/4 of a Cup of cocoa powder In my pantry I have 5/2 cups of cocoa powder. How many recipes can i make

Answers

Answer:

3 1/3

Step-by-step explanation:

5/2 divided by 3/4 = 3 1/3

If a sheep eats 1/6 of a bale a day how many sheep can be fed off of 1bale of hay?

Answers

To find out how many \frac { 1 }{ 6 } there are in 1 you should divide 1 by  \frac { 1 }{ 6 } so :
\frac { 1 }{ \frac { 1 }{ 6 } } =1\cdot 6=6 
6 sheep can be fed with 1 bale hay
6 because 6/6 is a whole and each sheep only eats 1/6.

How are a trapezoid and a rectangle different

Answers

-- Both pairs of sides of a rectangle are parallel.
Only one pair of sides of a trapezoid are.

-- A rectangle is a parallelogram.
A trapezoid isn't.

-- The opposite sides of a rectangle are equal.
The opposite sides of a trapezoid aren't.

-- All of the angles of a rectangle are right angles.
The angles of a trapezoid aren't.

-- The area of a rectangle is the product of (length) times (width).
The area of a trapezoid is (height) times (the average of the two bases).


A trapezoid has two perpendicular sides, and a rectangle has 4 parallel sides. 

A spinner is numbered from 1 through 10 with each number equally likely to occur. what is the probability of obtaining a number less than 2 or greater than 7 in a single spin?

Answers

There are 10 numbers from 1 - 10
first we get the numbers less than 2 are (1)
secondly get the numbers greater than 7 are (8,9,10)
total = 4 numbers
The favorable probability is 4 / 10=2 / 5
hope it helps

Answer:

(2)/(5)


Step-by-step explanation:


There are 10 total outcomes [numbers from 1 to 10]

What are the numbers that are LESS THAN 2 or GREATER THAN 7?

They are 1, 8, 9, and 10.


That's a total of 4 numbers. Also, total numbers is 10. Hence the probability of obtaining numbers that are less than 2 or greater than 7 is:

(4)/(10)

Simplifying gives us a probability of  (4)/(10)=(2)/(5)

HELP HELP !!!! ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

40

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

Step 1: Define

2.5g²

g = 4

Step 2: Evaluate

  1. Substitute:                    2.5(4)²
  2. Exponents:                   2.5(16)
  3. Multiply:                        40

Answer:

40

Step-by-step explanation:

2.5g^2

2.5(4)^2

2.5(16)

40

If the sale tax in your city is 5.4% and an item costs $5 before tax how much tax would you pay on that item round up to the nearest cent

Answers

5.4% is 0.054
Multiply by 1.054 because it is being added to $5

5 × 1.054
$5.27

Final answer:

The sales tax on an item costing $5 with a tax rate of 5.4% will be $0.27. This is calculated by converting the percentage to a decimal (0.054) and multiplying by the original cost ($5).

Explanation:

The subject of this question is mathematics, specifically, it's a problem of calculating the sales tax. In this scenario, if the tax rate is 5.4% and the initial price of the item is $5, you can calculate the amount of tax to pay by multiplying the original price of the item by the tax rate in decimal form.

So, step 1 is converting the percentage into a decimal by dividing by 100. That gives us 5.4 / 100 = 0.054.

Step 2 is multiplying this tax rate by the original price of the item:  $5 * 0.054 = $0.27.

Therefore, the tax you would pay on an item that costs $5 before sales tax is approximately $0.27, rounding up to the nearest cent.

Learn more about Sales Tax Calculation here:

brainly.com/question/18375545

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